Trek 3900 DISC 2010 VS Specialized ROCKHOPPER COMP 2008 specs comparison

Trek 3900 Disc

General Infos

Model	3900 Disc
Manufacturer	Trek
Year of production	2010
Current price	Check price Here ==>
Color choice	- Matte Orange - Special Edition Matte White -Matte Black
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches)
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Bontrager LT-3
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano EF-50 Levers ProMax Mechanical Disc Brakes
Hubs for disc brakes	Rear: Shimano FH-M475 Disc Front: Formula Alloy DC20
Rims manufacturer	Bontrager 550
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Alpha White Aluminum
Frame type	TIG-welded
Handlebar construction	Bontrager Approved Riser
Handlebar extender	Optional
Handlebar stem details	Bontrager Approved
Headset size	1 1/8 (inches) Threadless VP-A68-TK

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	42/34/24 Teeth Shimano M191
Gear shift levers	Shimano EF-50
Rear gear set	11 - 32 Teeth 8-speed

Trek 3900 Disc Fork System Data

Derailleur (Front)	Shimano C051
Derailleur (Rear)	Shimano M-360
Fork material	Single Crown
Fork type	100 (millimeters) Travel SR Suntour SF9 XCT V2

Other Specs of Trek 3900 Disc

Component group sets	Mountain Mix
Pedals details	Wellgo Nylon Platform
Rear shock absorber	Not Available
Saddle seat	Bontrager SSR
Seat post extension	31.6 (millimeters) Diameter Bontrager SSR

Specialized Rockhopper Comp

General Infos

Model	Rockhopper Comp
Manufacturer	Specialized
Year of production	2008
Current price	Check price Here ==>
Color choice	- Red -Silver
Sizes	- 15 - 17 - 19 - 21 - 23

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Specialized Fast Track Control
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid FR-5 Levers Avid BB-5 Disc Brakes
Hubs for disc brakes	Specialized Hi Lo Disc
Rims manufacturer	28-hole and 32-hole Alex RD
Spoke nipples type	Alloy Niples
Spoke wheel	15ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	M4 Aluminum
Frame type	TIG-welded
Handlebar construction	31.8 640 (millimeters) Wide With Graphic Specialized XC Rise
Handlebar extender	Optional
Handlebar stem details	31.8 (millimeters) Clamp 3D Forged Specialized
Headset size	1 1/8 (inches) Threadless Threadless

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMC X9
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano BB-ES25
Crankset parts and sizes	22/32/44 Teeth Shimano M442
Gear shift levers	Shimano Deore
Rear gear set	11 - 34 Teeth 9-speed

Specialized Rockhopper Comp Fork System Data

Derailleur (Front)	Dual-pull and clamp-on 34.9 (millimeters) Shimano Deore
Derailleur (Rear)	Shimano Deore
Fork material	Single
Fork type	100 (millimeters) Travel RockShox Tora 302SL

Other Specs of Specialized Rockhopper Comp

Component group sets	Mountain Mix
Pedals details	Specialized Aluminum
Rear shock absorber	Not Available
Saddle seat	Specialized Indie XC
Seat post extension	30.9 (millimeters) Diameter Two-bolt Alloy Micro-Adjust